【摘要】：使用兩步離子交換法制備工程應(yīng)力分布玻璃(ESP玻璃)。兩步離子交換中第一步交換時間較長,第二步交換時間較短。主要研究經(jīng)過不同第一步離子交換工藝制度后的ESP玻璃性能上的區(qū)別。本文對ESP玻璃測試了彎曲強度,顯微硬度,K+分布狀態(tài),并根據(jù)彎曲強度,K+分布狀態(tài)計算得出Weibull模量以及離子擴散系數(shù)。結(jié)果表明:第二步離子交換會降低第一步離子交換玻璃的彎曲強度,而兩步離子交換后的ESP玻璃其Weibull模量有所升高。顯微硬度趨勢與彎曲強度趨勢一致。結(jié)合抗折強度以及K+分布狀態(tài),可知第一步離子交換最佳溫度為450℃,時間30 h;第二步離子交換最佳溫度為400℃,時間33 min。
[Abstract]:Engineering stress distribution glass (ESP glass) was prepared by two-step ion exchange method. In the two-step ion exchange, the first step exchange time is longer and the second step exchange time is shorter. The differences in the properties of ESP glasses after different first step ion exchange processes are studied. In this paper, the bending strength, microhardness and K distribution state of ESP glass are measured. According to the bending strength and K distribution state, the Weibull modulus and ion diffusion coefficient are calculated. The results show that the bending strength of the first step ion exchange glass is decreased by the second step ion exchange, while the Weibull modulus of the ESP glass after two step ion exchange is increased. The trend of microhardness is consistent with that of bending strength. Combined with the bending strength and K distribution, the optimum temperature of ion exchange in the first step is 450 鈩，

本文編號：2475592